public class Block {  
    private int address; // 存储块的地址  
    private int size; // 存储块的大小  
  
    public Block(int address, int size) {  
        this.address = address;  
        this.size = size;  
    }  
  
    public int getAddress() {  
        return address;  
    }  
  
    public int getSize() {  
        return size;  
    }  
}